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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | OBP | YEAR | Open Career Leaderboard |
|---|---|---|---|---|
| 1 | Trent Jackson | .5385 | 2013 | |
| 2 | Jesús Ramírez | .5062 | 2007 | |
| 3 | Richard Valkenburg | .4930 | 2014 | |
| 4 | Roberto Muñóz | .4901 | 2013 | |
| 5 | Ken Krause | .4869 | 2010 | |
| 5 | Manny De Los Santos | .4869 | 2016 | |
| 7 | Carlos Jiménez | .4834 | 2017 | |
| 7 | Rubén Díaz | .4834 | 2019 | |
| 9 | Ed Williams | .4828 | 2016 | |
| 10 | Ken Keddy | .4798 | 2009 | |
| 11 | Miguel Campoy | .4753 | 2020 | |
| 12 | John Greene | .4738 | 2019 | |
| 13 | Rod Johnson | .4725 | 2012 | |
| 14 | Ching Lim | .4714 | 2017 | |
| 15 | Nick Dunlop | .4705 | 2014 | |
| 16 | Wes Bernard# | .4668 | 2035 | |
| 17 | Alexandre Perreault# | .4661 | 2025 | |
| 18 | Mike Bean | .4583 | 2016 | |
| 19 | Doug Roberts | .4582 | 2020 | |
| 20 | Shu-de Mu# | .4577 | 2027 | |
| 21 | Luis Reyes | .4523 | 2012 | |
| 22 | Chris Cain | .4509 | 2020 | |
| 23 | Caspar Gray# | .4508 | 2027 | |
| 24 | Rob McGrath | .4500 | 2014 | |
| 25 | Raúl Martínez# | .4490 | 2039 | |
| 26 | Valentín Nieto# | .4472 | 2028 | |
| 27 | Ken Smith | .4464 | 2010 | |
| 28 | Tomás Alomar | .4451 | 2016 | |
| 29 | José Martínez | .4442 | 2013 | |
| 30 | Jerome Morris | .4429 | 2021 | |
| 31 | Bob Adams | .4417 | 2013 | |
| 32 | José Romero | .4416 | 2021 | |
| 33 | Dustin Riddle | .4412 | 2014 | |
| 34 | Lawrence Jones | .4403 | 2012 | |
| 34 | Buck Morris | .4403 | 2014 | |
| 36 | Yasushi Tsukamoto | .4384 | 2020 | |
| 37 | Yoichi Inoue | .4383 | 2007 | |
| 38 | José López | .4378 | 2013 | |
| 39 | Tsurayaki Fujihara | .4373 | 2020 | |
| 40 | Ramón Nieto | .4372 | 2013 | |
| 41 | Richie Norman | .4369 | 2017 | |
| 42 | Leonard Ramsey | .4364 | 2014 | |
| 43 | Carlos Vázquez | .4361 | 2014 | |
| 44 | Blair Nelson | .4360 | 2009 | |
| 45 | Alonso González | .4347 | 2017 | |
| 46 | Juan Ortíz | .4336 | 2016 | |
| 47 | Ken Abbott | .4333 | 2021 | |
| 47 | Lou Nelson | .4333 | 2009 | |
| 49 | Rusty Butler | .4329 | 2016 | |
| 50 | Manuel Márquez# | .4327 | 2039 | |
| 51 | Gary Roadley | .4321 | 2017 | |
| 52 | Bruce Roland | .4311 | 2015 | |
| 52 | Anastasio Valdés | .4311 | 2014 | |
| 54 | Lorenzo Amador | .4308 | 2015 | |
| 55 | Lee Middleton | .4306 | 2008 | |
| 56 | Roberto Martínez | .4304 | 2024 | |
| 57 | Kyuso Miura | .4298 | 2010 | |
| 58 | Ed Hall# | .4295 | 2039 | |
| 59 | Felipe Cardoza | .4294 | 2016 | |
| 60 | Rafael Rico | .4291 | 2031 | |
| 61 | John Prentiss | .4278 | 2013 | |
| 62 | Steve Reese | .4275 | 2012 | |
| 63 | José Morán | .4266 | 2018 | |
| 64 | Ángel Rivera# | .4264 | 2031 | |
| 65 | Christian Madden | .4260 | 2012 | |
| 66 | Carlos Magana | .4258 | 2012 | |
| 67 | Ryan Roberts | .4255 | 2019 | |
| 68 | Larry Sheppard | .4251 | 2009 | |
| 69 | Shigenobu Kawakami | .4250 | 2021 | |
| 70 | Jason Crabtree | .4248 | 2012 | |
| 71 | Trent Jackson | .4247 | 2012 | |
| 72 | Charlie Tucker | .4235 | 2017 | |
| 73 | Clyde Johnson | .4234 | 2024 | |
| 74 | Cody Kinnevan# | .4227 | 2039 | |
| 75 | Juan Márquez | .4222 | 2013 | |
| 76 | Brandon Childers | .4213 | 2018 | |
| 76 | Joe Silver | .4213 | 2014 | |
| 78 | Mike Linker | .4207 | 2017 | |
| 79 | Dax O'Mannis | .4206 | 2013 | |
| 80 | Jonathan Farrell# | .4205 | 2039 | |
| 81 | Manuel Martínez | .4204 | 2013 | |
| 81 | Toyokazu Kurihara | .4204 | 2019 | |
| 83 | Rich Gilligan | .4200 | 2012 | |
| 84 | Jesús Romero# | .4198 | 2035 | |
| 85 | Joey Robinson | .4192 | 2017 | |
| 86 | Kwan-cheol Kang | .4179 | 2023 | |
| 87 | Joe Barton | .4177 | 2016 | |
| 88 | Mark Smylie | .4170 | 2015 | |
| 88 | Blair Nelson | .4170 | 2010 | |
| 90 | Thomas Davis | .4160 | 2022 | |
| 90 | Ángel Díaz# | .4160 | 2039 | |
| 92 | Rick Galloway# | .4159 | 2039 | |
| 92 | Matt Bunch | .4159 | 2017 | |
| 94 | Mario Tessier | .4157 | 2012 | |
| 95 | Mike Anderson | .4152 | 2018 | |
| 96 | Kyle MacAra# | .4151 | 2038 | |
| 97 | Miguel Galván | .4150 | 2022 | |
| 98 | Shinsui Hoshino | .4146 | 2020 | |
| 99 | Raúl Pagán | .4142 | 2017 | |
| 100 | Edward Youngberry | .4136 | 2013 |
